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20060540 = 2254721341
BaseRepresentation
bin100110010000…
…1100101111100
31101202011212222
41030201211330
520113414130
61553544512
7332340353
oct114414574
941664788
1020060540
1110361865
126875138
134204b56
14294299a
151b63ce5
hex132197c

20060540 has 24 divisors (see below), whose sum is σ = 43025472. Its totient is φ = 7853120.

The previous prime is 20060507. The next prime is 20060569. The reversal of 20060540 is 4506002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (1792728).

Almost surely, 220060540 is an apocalyptic number.

20060540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20060540 is an abundant number, since it is smaller than the sum of its proper divisors (22964932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20060540 is a wasteful number, since it uses less digits than its factorization.

20060540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21397 (or 21395 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20060540 is about 4478.8994183839. The cubic root of 20060540 is about 271.7153705111.

Adding to 20060540 its reverse (4506002), we get a palindrome (24566542).

The spelling of 20060540 in words is "twenty million, sixty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 21341 42682 85364 106705 213410 426820 1003027 2006054 4012108 5015135 10030270 20060540